GEO302C-L31 - GEO302C 04/07/08 Lecture 31: Historical...

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GEO302C 04/07/08 Lecture 31: Historical Climate: Volcanoes and Sunspots Homework Definitions Dates Important People 1. Climate change since LGM a. Boiling-Alerod b. Younger-Dryas c. Holocene Maximum d. 1000 ybp- N.Hemisphere was cooler than now, certain regions were warmer than others 2. Volcanic Explosions a. Will hot lava flowing produce warming effects? NO i. Releases ash, which reflects the suns rays ii. Not a long term climate effect iii. Fire fountains b. Will forest fires and smoke affect the climate? NO i. Disappear in days c. Mountains created by volcanic eruptions i. Laki, Ireland ii. They do affect local airflow and circulation d. Will a quiescent volcano effect climate? i. Mt. Erebus ii. Doesn’t effect global climate e. Krakatau- 1883 i. Loudest explosion ever heard ii. Doesn’t affect climate (sound itself) 3. How is climate affected? a. Explosions can make it to the stratosphere b. Sulfate clouds reflect solar radiation (Indirect effect) c. Direct vs. Indirect effects d. In Stratosphere- not much water vapor =
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This note was uploaded on 04/16/2008 for the course GEO 302C taught by Professor Yang during the Spring '08 term at University of Texas at Austin.

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GEO302C-L31 - GEO302C 04/07/08 Lecture 31: Historical...

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